Wisconsin Governor Scott Walker (R) and

Wisconsin Gov. Scott Walker, right, and Lt. Gov. Rebecca Kleefisch, left, attend a memorial service Monday for six people killed in an attack the day before on a Wisconsin Sikh temple in Brookfield, Wisc. Hundreds of mourners gathered at the Sikh Religious Society of Wisconsin -- a temple just...

Wisconsin Gov. Scott Walker, right, and Lt. Gov. Rebecca Kleefisch, left, attend a memorial service Monday for six people killed in an attack the day before on a Wisconsin Sikh temple in Brookfield, Wisc. Hundreds of mourners gathered at the Sikh Religious Society of Wisconsin -- a temple just... (Mira Oberman / AFP/Getty Images)

Wisconsin Gov. Scott Walker, right, and Lt. Gov. Rebecca Kleefisch, left, attend a memorial service Monday for six people killed in an attack the day before on a Wisconsin Sikh temple in Brookfield, Wisc. Hundreds of mourners gathered at the Sikh Religious Society of Wisconsin -- a temple just...Mira Oberman / AFP/Getty Images